Developer

JWT Decoder

Decode JWT headers and payloads locally without verifying secrets.

All tools

JWT

This decodes only. It does not verify the signature or secret.

Decoded JSON

{
  "header": {
    "alg": "HS256",
    "typ": "JWT"
  },
  "payload": {
    "sub": "tulakito",
    "name": "TULAKITO",
    "iat": 1716163200
  }
}

Frequently asked questions

Is JWT Decoder free to use?
Yes. JWT Decoder is part of TULAKITO's collection of free browser tools. No signup, no subscription, no usage limits.
Is my data safe with JWT Decoder?
Yes. JWT Decoder runs entirely in your browser. Nothing you type, paste, or upload is sent to any server.
Do I need to install anything?
No. JWT Decoder works directly in your browser on desktop and mobile — no downloads or extensions required.